Results 81 to 90 of about 28,058 (211)
Euler-Lagrange models with complex currents of three-phase electrical machines and observability issues [PDF]
, 2009 A new Lagrangian formulation with complex currents is developed and yields a direct and simple method for modeling three-phase permanent-magnet and induction machines. The Lagrangian is the sum a mechanical one and of a magnetic one.
Basic, Duro +2 more
core +3 more sources
Speed‐Sensorless Model‐Free Predictive Torque Control for Induction Motor Drive
IET Electric Power Applications, Volume 20, Issue 1, January/December 2026.A speed‐sensorless MF‐PTC based on EKF is proposed for a 2L‐VSI‐fed IM drive to reduce the overall cost and complexity of the drive system. The rotor speed is estimated using the EKF. The instant rotor flux is also estimated using the EKF based on the rotor current model of IM, whereas a direct machine model is employed in general to estimate the rotor
Md. Belal Hossen, Md. Habibullah
wiley +1 more source
A novel algorithm for sensorless motion control, parameter identication and position estimation [PDF]
, 2009 This article demonstrates that an actuator can be used as a single platform for measurement, control and estimation by designing a chain of estimators and performing simple off-line experiments.
Kahalil, Islam +3 more
core
Speed Sensor Fault Tolerant PMSM Machines: From Position-Sensorless to Sensorless Control
IEEE Transactions on Industry Applications, 2019 New sensorless observers (i.e., from stator currents/voltages measurements only), to be included into a simple observer-based sensorless control for the tracking of non-definitely zero speed references in nonsalient-pole surface permanent magnet synchronous machines (PMSMs), are proposed. They are obtained through a “minimum distance” modification from
Cristiano M. Verrelli +6 more
openaire +5 more sources
IET Electric Power Applications, Volume 20, Issue 1, January/December 2026.Through the integration of simple decoupling terms, self‐tuning proportional gains, and compensation control, both excellent transient and steady‐state current responses of the IPMSM are achieved, which are further evaluated and compared under all parametric variations.
Shin‐Hung Chang +2 more
wiley +1 more source
Influence of error factors in sensorless cutting force estimation
Nihon Kikai Gakkai ronbunshu, 2017 Error factors in sensorless cutting force estimation under ball-screw-driven stage were discussed. In addition, their influence on estimation accuracy was experimentally evaluated through several end milling tests. Because rigid body-based formulation is
Yuki YAMADA, Yasuhiro KAKINUMA
doaj +1 more source
Estimation of Saturation of Permanent-Magnet Synchronous Motors Through an Energy-Based Model [PDF]
, 2011 We propose a parametric model of the saturated Permanent-Magnet Synchronous Motor (PMSM) together with an estimation method of the magnetic parameters. The model is based on an energy function which simply encompasses the saturation effects. Injection of
Jebai, AlKassem +3 more
core +2 more sources
An Optimal Nonlinear Controller Design on Multilevel Boost Converter Using Reinforcement Learning
IET Power Electronics, Volume 19, Issue 1, January/December 2026.Multilevel DC‐DC boost converters are critical in renewable and electric vehicle applications but face stability issues under constant power loads. This study introduces a modified integral nonlinear terminal sliding mode controller (MINTSMC) optimized with deep deterministic policy gradient (DDPG) within a digital twin framework, validated on hardware‐
Mojtaba Hajihosseini +2 more
wiley +1 more source
Energies, 2020 In this paper, a parallel estimation system of the stator resistance and the rotor speed is proposed in speed sensorless six-phase induction motor (6PIM) drive.
Hamidreza Heidari +6 more
doaj +1 more source
The detection of lubricating oil viscosity changes in gearbox transmission systems driven by sensorless variable speed drives using electrical supply parameters [PDF]
, 2015 Lubrication oil plays a decisive role to maintain a reliable and efficient operation of gear transmissions. Many offline methods have been developed to monitor the quality of lubricating oils.
A D Ball +19 more
core +1 more source